Diabetes, Gastric Emptying, Ultrasound
Conditions
Keywords
fasting, gastric ultrasound, preoperative fasting, diabetes
Brief summary
The American Society of Anesthesiologists (ASA) does not specify a fasting period for patients with certain comorbidities, such as diabetes, for elective surgery, and does not make a separate recommendation for surgery. The European Society of Anesthesiology (ESA) guidelines do not differentiate between diabetic patients and normal patients. Aspiration of gastric contents is a common cause of perioperative morbidity and mortality. Aspiration can cause hypoxia, bronchospasm, pneumonia, acute respiratory distress syndrome and death. The presence of food or fluid in the stomach before induction of anesthesia is one of the greatest risk factors for perioperative pulmonary aspiration. Sedation and general anesthesia suppress or inhibit physiologic mechanisms (tone of the lower esophageal sphincter and upper airway reflexes) that protect against aspiration. Because restriction of fluid and food intake before general anesthesia is vital for patient safety, Anesthesiology societies have developed guidelines for preoperative fasting. Current ASA guidelines recommend at least 2 hours fasting for clear liquids, 6 hours fasting after a light meal (toast and clear liquids) and 8 hours fasting after a high calorie or fat meal. The information obtained from gastric ultrasound allows anesthesiologists to determine the optimal timing of procedures, type of anesthesia and airway management technique.
Interventions
performing gastric ultrasound to determine gastric contents
Sponsors
Study design
Eligibility
Inclusion criteria
* Written informed consent obtained 40-65 BMI\<40 ASA I-III Fasting for at least 8 hours Elective surgery
Exclusion criteria
* Pregnancy Upper gastrointestinal malignancy Large Hiatal Hernia Kidney failure Liver failure Opioid use Use of drugs affecting motility Previous upper abdominal surgery BMI ≥40 kg/m2 Emergency surgery Diabetic ketoacidosis Sepsis
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| determine stomach fullness | baseline (before intubation) | To evaluate residual gastric volume in diabetic patients fasting for elective surgery |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Incidence of risk factors | during surgery | Investigating risk factors for a full stomach in diabetic patients |
Countries
Turkey (Türkiye)